<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
  import echarts from 'echarts'
  require('echarts/theme/macarons') // echarts theme
  import resize from '@/views/dashboard/mixins/resize'

  export default {
    mixins: [resize],
    props: {
      className: {
        type: String,
        default: 'chart'
      },
      width: {
        type: String,
        default: '100%'
      },
      height: {
        type: String,
        default: '300px'
      },
      chartData: {
        type: Object,
        required: true
      }
    },
    data() {
      return {
        chart: null
      }
    },
    watch: {
      chartData: {
        deep: true,
        handler(val) {
          this.setOptions(val)
        }
      }
    },
    mounted() {
      this.$nextTick(() => {
        this.initChart()
      })
    },
    beforeDestroy() {
      if (!this.chart) {
        return
      }
      this.chart.dispose()
      this.chart = null
    },
    methods: {
      initChart() {
        this.chart = echarts.init(this.$el, 'macarons')
        this.setOptions(this.chartData)
      },
      setOptions({ legendData,seriesData } = {}) {
        if(this.clear){
          this.chart.clear();
        }
        if(!this.chart){
          return
        }
        this.chart.setOption({
          title:{
            x:'center',
            textStyle:{
              color:'#ED7D31'
            },
          },
          tooltip: {
            trigger: 'item',
            formatter: '{b} ({d}%)'
          },
          legend: {
            right: '18%',
            orient:'vertical',
            top: '50',
            data: legendData
          },
          series: [
            {
              name: '',
              type: 'pie',
              center: ['30%', '60%'],
              label:{
                normal:{
                  show: false,
                  position: 'center',
                }
              },
              labelLine:{
                normal:{
                  show: false,
                  position: 'center',
                }
              },
              data: seriesData,
              animationEasing: 'cubicInOut',
              animationDuration: 2600
            }
          ]
        })
      },

    }
  }
</script>
